A new type of transformer

Abstract

This invention discloses a novel transformer, belonging to the field of vehicle-mounted transformer technology. It includes a base, with a metal cover fixedly mounted on the top of the base. A magnetic core is embedded inside the metal cover, and the bottom of the magnetic core is fixedly mounted on the top of the base. A heat dissipation vent is provided on the side end face of the metal cover for ventilation. In this invention, a linear moving shaft also applies a thrust to an insulating ejector shaft via a linear pushing shaft. Under the action of this thrust, the insulating pushing shaft moves towards the external connector. The external connector detaches from the inside of the plug-in type connector under the action of the thrust. Since the sealing cover lacks support from the external connector, it closes under the return force of the adapter spring sleeved on the outer shaft surface of the adapter shaft. With the addition of a sealing gasket, the sealing at the plug-in type connector is effectively guaranteed, preventing water from seeping into the interior of the metal cover through the plug-in type connector, further enhancing the waterproof protection of the magnetic core.

Description

Technical Field

[0001] This invention belongs to the field of vehicle-mounted transformer technology, and particularly relates to a novel transformer. Background Technology

[0002] A vehicle-mounted transformer is a convenient power converter for vehicles. As a DC-to-AC converter used while on the move, it provides great convenience to drivers and is a commonly used automotive electronic accessory.

[0003] Existing technologies disclose several invention patents in the field of vehicle-mounted transformer technology. Among them, Chinese patent CN111415799A discloses a high-efficiency heat dissipation transformer for new energy vehicles, including a base, a shell, a transformer body, a first heat dissipation component limiting component, a second heat dissipation component limiting component, a first heat dissipation assembly, a second heat dissipation assembly, a cooling fan, and a top cover. The inner sides of the front and rear walls of the shell are respectively provided with two sets of symmetrically arranged first heat dissipation component limiting components, and the inner sides of the left and right walls of the shell are respectively provided with two sets of symmetrically arranged second heat dissipation component limiting components. Each set of first heat dissipation component limiting components and each set of second heat dissipation component limiting components includes two limiting slots. The limiting slots form limiting cavities in which the first or second heat dissipation component limiting component can be inserted. The first and second heat dissipation assemblies are respectively mounted on the first and second heat dissipation component limiting components. A cooling fan is installed below the second heat dissipation assembly. This technical solution can effectively dissipate the heat inside the transformer quickly, achieving a good heat dissipation effect.

[0004] The existing new transformers still have some shortcomings in use. If a new energy vehicle is involved in a water accident, water can easily flow in through the heat dissipation port of the vehicle transformer, causing a short circuit. As the vehicle transformer is an important device in the circuit of a new energy vehicle, the cost of using and maintaining the vehicle transformer is high. If a circuit accident is caused by water, it can easily affect the entire circuit system.

[0005] Based on this, the present invention designs a novel transformer to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address some shortcomings of existing transformers in the field of new energy vehicles. In the event of a water immersion accident in a new energy vehicle, water can easily flow in through the heat dissipation vent of the on-board transformer, causing a short circuit. As the on-board transformer is an important component in the circuit of a new energy vehicle, its use and maintenance costs are high. Furthermore, if a circuit accident is caused by water immersion, it can easily radiate to the entire circuit system. Therefore, this invention proposes a new type of transformer.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A novel transformer includes a base, a metal cover fixedly mounted on the top of the base, a magnetic core embedded in the inner side of the metal cover, the bottom of the magnetic core fixedly mounted on the top of the base, a heat dissipation vent on the side end face of the metal cover for ventilation inside the metal cover, and a blade-type heat dissipation component embedded inside the metal cover at the position corresponding to the heat dissipation vent to accelerate and change the airflow direction.

[0009] The side end face of the metal cover is provided with a plug-in external component, and the inner side of the plug-in external component is fitted with an ejection power-off component for ejecting the external plug. The ejection power-off component is connected to the blade-type heat dissipation component.

[0010] The inner side of the metal cover is fitted with a tubular heat dissipation component, and the tubular heat dissipation component is equipped with an air induced component. The tubular heat dissipation component is sleeved around the magnetic core and uses air or water flow for auxiliary heat dissipation.

[0011] As a further description of the above technical solution:

[0012] The blade-type heat dissipation assembly includes an axial motor, which is located inside the metal cover at a position corresponding to the heat dissipation port, and a cooling fan is fixedly installed on the output shaft of the axial motor.

[0013] A frame is fixedly installed on the outer surface of the axial flow motor body. A linear moving frame is fixedly connected to the end of the frame away from the axial flow motor. A sealing blade is provided on the side of the linear moving frame corresponding to the position of the heat dissipation port. The sealing blade is rotatably connected to the linear moving frame through a blade shaft and a bearing.

[0014] As a further description of the above technical solution:

[0015] A regular polygonal block is fixedly sleeved on the outer shaft surface of the blade shaft, and a track frame is sleeved around the regular polygonal block. The side end face of the track frame is fixedly connected to the end face of the inner side of the metal cover.

[0016] As a further description of the above technical solution:

[0017] The plug-in external component includes a plug-in external connector, which is snapped onto the side end face of the metal cover, and the inner end face of the plug-in external connector is provided with multiple conductors.

[0018] As a further description of the above technical solution:

[0019] The plug-in external connector has a waterproof sealing cap on the side away from the metal cover. A sealing gasket to enhance waterproof sealing is provided between the sealing cap and the plug-in external connector. An elbow is fixedly connected to the top of the sealing cap, and an adapter shaft is fixedly connected to the other end of the elbow. An adapter sleeve is rotatably connected to the end of the adapter shaft through a bearing. The bottom of the adapter sleeve is fixedly connected to the top of the plug-in external connector.

[0020] As a further description of the above technical solution:

[0021] The ejection power-off assembly includes an insulated ejection shaft. An insulating sleeve is fitted onto the outer surface of the insulated ejection shaft. The insulating sleeve is snapped into one side of the plug-in external connector corresponding to the inside of the metal cover. A support spring is fitted around the periphery of the insulated ejection shaft. One end of the support spring is fixedly connected to the outer shaft surface of the insulated ejection shaft, and the other end of the support spring is fixedly connected to the side of the insulating sleeve that is close to it.

[0022] As a further description of the above technical solution:

[0023] A linkage frame is fixedly connected to the side of the insulating ejector shaft away from the plug-in external connector. A linear push shaft is provided on the side of the linkage frame. A linear moving shaft is fixedly connected to the other end of the linear push shaft. One end of the linear moving shaft is fixedly installed on the side end face of the axial motor body.

[0024] As a further description of the above technical solution:

[0025] An electric push rod is fixedly installed at the other end of the linear moving shaft, and a base is fixedly installed at the other end of the electric push rod. The bottom of the base is fixedly connected to the top of the base.

[0026] As a further description of the above technical solution:

[0027] The tubular heat dissipation assembly includes a heat dissipation pipe, which is sleeved around the magnetic core and located inside a metal cover. A suction pipe is snapped into the bottom of the metal cover, and the end of the suction pipe that is close to the heat dissipation pipe is connected to it. A discharge pipe is snapped into the side of the metal cover away from the suction pipe, and the end of the discharge pipe that is close to the heat dissipation pipe is connected to it.

[0028] As a further description of the above technical solution:

[0029] The air-driven assembly includes a drive shaft, the outer shaft surface of which is rotatably connected to the heat sink via a bearing. One end of the drive shaft is fixedly connected to a flow vane located inside the heat sink, and the other end of the drive shaft is fixedly connected to an air-driven fan.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] 1. In this invention, when a new energy vehicle is involved in a traffic accident and falls into water, the electric push rod will push the linear moving shaft to move in the direction of the heat dissipation vent. The linear moving shaft drives the sealing blades to make linear movements through the linear moving frame to seal the heat dissipation vent, thereby preventing water from entering the metal cover and causing short circuits or other circuit accidents. The linear moving shaft will also apply a pushing force to the insulating push shaft through the linear push shaft. Under the action of the pushing force, the insulating push shaft moves in the direction of the external plug. Under the action of the pushing force, the external plug falls out from the inside of the plug-in external connector. Since the sealing cover lacks the support from the external plug, it closes under the action of the return spring force of the adapter spring sleeved on the outer shaft surface of the adapter shaft. With the addition of a sealing gasket, the sealing performance at the plug-in external connector can be effectively guaranteed, preventing water from seeping into the inside of the metal cover through the plug-in external connector, and further improving the waterproof protection of the magnetic core.

[0032] 2. In this invention, water enters the heat dissipation pipe through the suction pipe and is finally discharged through the discharge pipe, thereby enabling water cooling of the magnetic core. Water cooling is more efficient than air cooling, so the heat generated by circuit failure when a new energy vehicle is submerged in water can be consumed in time. This achieves both waterproofing and cooling, allowing the magnetic core to operate at high power and effectively improving the performance of transformers used in new energy vehicles.

[0033] 3. In this invention, during the flow of air inside the heat dissipation pipe, the air absorbs the hot air around the magnetic core and undergoes a heat exchange reaction with it, thereby playing a certain role in heat dissipation for the magnetic core. When the air flows through the rotating blades inside the heat dissipation pipe, it drives the rotating blades to rotate in the bearing through the rotating shaft. The rotating blades drive the air to drive the fan through the rotating shaft to improve the airflow in the metal cover, which is conducive to further improving the heat exchange rate between the heat dissipation pipe and the air around the magnetic core. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a novel transformer proposed in this invention;

[0035] Figure 2 This is a schematic diagram of the structure of a novel transformer proposed in this invention from another perspective;

[0036] Figure 3 This is a schematic diagram of the internal structure of the metal casing in a novel transformer proposed in this invention;

[0037] Figure 4 This is a schematic diagram of the structure of a novel tube-type heat dissipation assembly for a transformer proposed in this invention;

[0038] Figure 5This is a schematic diagram of the structure of a novel transformer in which a tubular heat dissipation component and a blade heat dissipation component are combined, as proposed in this invention.

[0039] Figure 6 This is a schematic diagram of the structure of a novel blade-type heat dissipation assembly in a transformer proposed in this invention;

[0040] Figure 7 This is a schematic diagram of the structure of a novel transformer top-out power-off component proposed in this invention;

[0041] Figure 8 This invention proposes a novel transformer. Figure 7 Enlarged structural diagram at point A;

[0042] Figure 9 This is a schematic diagram of the structure of a novel transformer tube-type heat dissipation component and air-driven component after disassembly, as proposed in this invention.

[0043] Figure 10 This is a schematic diagram of the structure of an air-driven component in a novel transformer proposed in this invention.

[0044] Legend:

[0045] 1. Base; 2. Magnetic core; 3. Metal cover; 4. Heat dissipation vent; 5. Blade-type heat dissipation assembly; 501. Axial flow motor; 502. Cooling fan; 503. Linear moving axis; 504. Frame; 505. Linear moving frame; 506. Sealing blade; 6. Regular polygonal block; 7. Track frame; 8. Plug-in external assembly; 801. Plug-in external connector; 802. Sealing cover; 803. Sealing gasket; 804. Elbow; 80 5. Adapter shaft; 806. Adapter sleeve; 9. Ejection power-off assembly; 901. Support spring; 902. Linkage frame; 903. Insulated ejection shaft; 904. Linear push shaft; 10. Base; 11. Tubular heat dissipation assembly; 111. Heat dissipation pipe; 112. Intake pipe; 113. Exhaust pipe; 12. Air induced assembly; 121. Drive shaft; 122. Air induced fan; 123. Rotating blades; 13. Electric push rod. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Please see Figures 1-10The present invention provides a technical solution: a novel transformer, including a base 1, a metal cover 3 fixedly installed on the top of the base 1, a magnetic core 2 embedded in the inner side of the metal cover 3, the bottom of the magnetic core 2 fixedly installed on the top of the base 1, a heat dissipation port 4 opened on the side end face of the metal cover 3 to facilitate ventilation inside the metal cover 3, and a blade-type heat dissipation component 5 embedded in the metal cover 3 at the position corresponding to the heat dissipation port 4 to accelerate and change the airflow direction.

[0048] The side end face of the metal cover 3 is provided with a plug-in external component 8, and the inner side of the plug-in external component 8 is fitted with an ejection power-off component 9 for ejecting the external plug. The ejection power-off component 9 is connected to the blade-type heat dissipation component 5.

[0049] A tubular heat dissipation component 11 is embedded inside the metal cover 3. An air induced component 12 is provided on the tubular heat dissipation component 11. The tubular heat dissipation component 11 is sleeved around the magnetic core 2 and uses air or water flow for auxiliary heat dissipation.

[0050] Specifically, such as Figures 5-7 As shown, the blade-type heat dissipation assembly 5 includes an axial motor 501, which is located inside the metal cover 3 at the position corresponding to the heat dissipation port 4. A cooling fan 502 is fixedly installed on the output shaft of the axial motor 501.

[0051] A frame 504 is fixedly installed on the outer surface of the axial motor 501. A linear moving frame 505 is fixedly connected to the end of the frame 504 away from the axial motor 501. A sealing blade 506 is provided on the side of the linear moving frame 505 corresponding to the heat dissipation port 4. The sealing blade 506 is rotatably connected to the linear moving frame 505 through a blade shaft and a bearing. A regular polygonal block 6 is fixedly sleeved on the outer shaft surface of the blade shaft. A track frame 7 is sleeved around the regular polygonal block 6. The side end face of the track frame 7 is fixedly connected to the end face of the inner side of the metal cover 3.

[0052] The specific implementation method is as follows: A temperature monitoring module is installed at the magnetic core 2. When the heat dissipation pipe 111 cannot meet the heat dissipation requirements of the magnetic core 2, the axial flow motor 501 is controlled to run. The output shaft of the axial flow motor 501 is driven by the electric cooling fan 502 to rotate rapidly. Under the action of the cooling fan 502, the air around the metal cover 3 enters the interior of the metal cover 3 through the heat dissipation port 4. During the process of the air entering the interior of the metal cover 3 through the heat dissipation port 4, it will directly act on the sealing blade 506. The sealing blade 506 rotates under the drive of the air flow. The rotation of the sealing blade 506 will change the direction of the air flow, making the air flow direction entering the interior of the metal cover 3 through the heat dissipation port 4 diversified.

[0053] Specifically, such as Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, the plug-in external connector 8 includes a plug-in external connector 801, which is snapped onto the side end face of the metal cover 3. Multiple conductors are provided on the inner end face of the plug-in external connector 801. A waterproof sealing cover 802 is provided on the side of the plug-in external connector 801 away from the metal cover 3. A sealing gasket 803 to enhance waterproof sealing is provided between the sealing cover 802 and the plug-in external connector 801. An elbow 804 is fixedly connected to the top of the sealing cover 802, and an adapter shaft 805 is fixedly connected to the other end of the elbow 804. An adapter sleeve 806 is rotatably connected to the end of the adapter shaft 805 via a bearing. The bottom of the adapter sleeve 806 is fixedly connected to the top of the plug-in external connector 801. The ejector power-off assembly 9 includes an insulated ejector shaft 903. An insulating sleeve is fitted onto the outer surface of the insulated ejector shaft 903. A support spring 901 is sleeved around the insulating ejector shaft 903 on the side corresponding to the inside of the metal cover 3 of the plug-in external connector 801. One end of the support spring 901 is fixedly connected to the outer shaft surface of the insulating ejector shaft 903, and the other end of the support spring 901 is fixedly connected to the side of the insulating sleeve. A linkage frame 902 is fixedly connected to the side of the insulating ejector shaft 903 away from the plug-in external connector 801. A linear push shaft 904 is provided on the side of the linkage frame 902. A linear moving shaft 503 is fixedly connected to the other end of the linear push shaft 904. One end of the linear moving shaft 503 is fixedly installed on the side end face of the axial motor 501. An electric push rod 13 is fixedly installed on the other end of the linear moving shaft 503. A base 10 is fixedly installed on the other end of the electric push rod 13. The bottom of the base 10 is fixedly connected to the top of the base 1.

[0054] The specific implementation method is as follows: When a new energy vehicle is involved in a traffic accident and falls into water, the electric push rod 13 will push the linear moving shaft 503 to move towards the heat dissipation port 4. The linear moving shaft 503 drives the sealing blade 506 to make linear movements through the linear moving frame 505 to seal the heat dissipation port 4, thereby preventing water from entering the metal cover 3 and causing short circuits or other circuit accidents. The linear moving shaft 503 will also apply a pushing force to the insulating ejection shaft 903 through the linear push shaft 904. Under the action of the pushing force, the insulating push shaft moves towards the external plug. Under the action of the pushing force, the external plug falls out from the inside of the plug-in external connector 801. Since the sealing cover 802 lacks the support from the external plug, it closes under the action of the return spring force of the adapter spring sleeved on the outer shaft surface of the adapter shaft 805. With the addition of the sealing gasket 803, the sealing performance at the plug-in external connector 801 can be effectively guaranteed.

[0055] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 and Figure 10As shown, the tubular heat dissipation assembly 11 includes a heat dissipation pipe 111, which is sleeved around the magnetic core 2 and located inside the metal cover 3. A suction pipe 112 is snapped into the bottom of the metal cover 3, and the end of the suction pipe 112 is connected to the end of the heat dissipation pipe 111. An exhaust pipe 113 is snapped into the side of the metal cover 3 away from the suction pipe 112, and the end of the exhaust pipe 113 is connected to the end of the heat dissipation pipe 111. The air induced assembly 12 includes a drive shaft 121, the outer shaft surface of which is rotatably connected to the heat dissipation pipe 111 via a bearing. A flow vane 123 is fixedly connected to one end of the drive shaft 121 and is located inside the heat dissipation pipe 111. An air induced fan 122 is fixedly connected to the other end of the drive shaft 121.

[0056] The specific implementation method is as follows: the end of the suction pipe 112 away from the heat dissipation pipe 111 is assembled at a position with a relatively fast air flow rate. Air is introduced into the heat dissipation pipe 111 by the suction pipe 112 and finally discharged through the discharge pipe 113. During the flow of air in the heat dissipation pipe 111, it will absorb the hot air around the magnetic core 2 and undergo a heat exchange reaction with it, thereby playing a certain role in heat dissipation for the magnetic core 2. When the air flows through the flow vane 123 in the heat dissipation pipe 111, it will drive the flow vane 123 to rotate in the bearing through the shaft. The flow vane 123 drives the air to drive the fan 122 through the shaft to increase the air flow rate in the metal cover 3. Since the water pressure in the lower layer is greater than that in the upper layer, during the process of the new energy vehicle sinking in the water, water will enter the heat dissipation pipe 111 through the suction pipe 112 and finally be discharged through the discharge pipe 113.

[0057] Working principle and usage:

[0058] During the high-speed driving of a new energy vehicle, the air velocity around the vehicle increases. The end of the intake pipe 112 away from the heat dissipation pipe 111 is assembled in a position with a high air velocity. Air is introduced into the heat dissipation pipe 111 by the intake pipe 112 and finally discharged through the exhaust pipe 113. During the flow of air in the heat dissipation pipe 111, it absorbs the hot air around the magnetic core 2 and undergoes a heat exchange reaction with it, thereby playing a certain role in heat dissipation for the magnetic core 2. When the air flows through the flow vane 123 in the heat dissipation pipe 111, it drives the flow vane 123 to rotate in the bearing through the shaft. The flow vane 123 drives the air induced fan 122 through the shaft to improve the air flow in the metal cover 3, which is conducive to further improving the heat exchange rate between the heat dissipation pipe 111 and the air around the magnetic core 2.

[0059] A temperature monitoring module is installed at the magnetic core 2. When the heat dissipation pipe 111 cannot meet the heat dissipation requirements of the magnetic core 2, the axial flow motor 501 is controlled to run. The output shaft of the axial flow motor 501 is driven by the electric cooling fan 502 to rotate rapidly. Under the action of the cooling fan 502, the air around the metal cover 3 enters the interior of the metal cover 3 through the heat dissipation port 4. During the process of the air entering the interior of the metal cover 3 through the heat dissipation port 4, it will directly act on the sealing blade 506. The sealing blade 506 rotates under the drive of the air flow. The rotation of the sealing blade 506 will change the direction of the air flow, making the air flow direction entering the interior of the metal cover 3 through the heat dissipation port 4 more diversified. Therefore, it can achieve good air cooling for the magnetic core 2. The tubular heat dissipation component 11 and the blade heat dissipation component 5 assist each other, thereby achieving energy-saving technical effects while ensuring the heat dissipation effect of the magnetic core 2.

[0060] When a new energy vehicle is involved in a traffic accident and falls into the water, the electric push rod 13 will push the linear moving shaft 503 to move towards the heat dissipation port 4. The linear moving shaft 503 drives the sealing blade 506 to make linear movements through the linear moving frame 505 to seal the heat dissipation port 4, thereby preventing water from entering the metal cover 3 and causing short circuits and other circuit accidents.

[0061] The linear moving shaft 503 also applies a thrust to the insulating ejection shaft 903 through the linear pushing shaft 904. Under the action of the thrust, the insulating pushing shaft moves in the direction of the external plug. Under the action of the thrust, the external plug falls out from the inside of the plug-in external connector 801. Since the sealing cover 802 lacks the support from the external plug, it closes under the action of the return spring force of the adapter spring sleeved on the outer shaft surface of the adapter shaft 805. With the addition of the sealing gasket 803, the sealing performance at the plug-in external connector 801 can be effectively guaranteed, preventing water from seeping into the interior of the metal cover 3 through the plug-in external connector 801, and further improving the waterproof protection of the magnetic core 2.

[0062] Because the water pressure in the lower layer is greater than that in the upper layer, during the process of a new energy vehicle sinking in water, water will enter the heat dissipation pipe 111 through the suction pipe 112 and finally be discharged through the discharge pipe 113. This allows for water cooling of the magnetic core 2. Water cooling is more efficient than air cooling, so the heat generated by circuit failures during the short time the new energy vehicle sinks into the water can be consumed in time. This achieves both waterproofing and cooling, enabling the magnetic core 2 to operate at high power and effectively improving the performance of the transformer used in new energy vehicles.

[0063] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A novel transformer, comprising a base (1), a metal cover (3) is fixedly installed on the top of the base (1), a magnetic core (2) is embedded in the inner side of the metal cover (3), and the bottom of the magnetic core (2) is fixedly installed on the top of the base (1), characterized in that, The metal cover (3) has a heat dissipation port (4) on its side end face to facilitate ventilation inside the metal cover (3). Inside the metal cover (3), a blade-type heat dissipation component (5) is embedded at the position corresponding to the heat dissipation port (4) to accelerate and change the airflow direction. The side end face of the metal cover (3) is provided with a plug-in external component (8), and the inner side of the plug-in external component (8) is fitted with an ejection power-off component (9) for ejecting the external plug, and the ejection power-off component (9) is connected to the blade-type heat dissipation component (5). The inner side of the metal cover (3) is provided with a tubular heat dissipation component (11), and an air priming component (12) is provided on the tubular heat dissipation component (11). The tubular heat dissipation component (11) is sleeved around the magnetic core (2) and uses air or water flow for auxiliary heat dissipation. The ejection power-off assembly (9) includes an insulated ejection shaft (903). An insulating sleeve is fitted onto the outer surface of the insulated ejection shaft (903). The insulating sleeve is snapped into the side of the plug-in external connector (801) corresponding to the inside of the metal cover (3). A support spring (901) is fitted around the periphery of the insulated ejection shaft (903). One end of the support spring (901) is fixedly connected to the outer shaft surface of the insulated ejection shaft (903), and the other end of the support spring (901) is fixedly connected to the side of the insulating sleeve. An insulated ejector shaft (903) is fixedly connected to a linkage frame (902) on the side away from the plug-in external connector (801). A linear push shaft (904) is provided on the side of the linkage frame (902). A linear moving shaft (503) is fixedly connected to the other end of the linear push shaft (904). One end of the linear moving shaft (503) is fixedly installed on the side end face of the axial flow motor (501) body. The linear moving axis (503) also applies a thrust to the insulating ejection axis (903) through the linear pushing axis (904). Under the action of the thrust, the insulating pushing axis moves in the direction of the external plug, and the external plug falls out from the inside of the plug-in external connector (801) under the action of the thrust. An electric push rod (13) is fixedly installed at the other end of the linear moving shaft (503), and a base (10) is fixedly installed at the other end of the electric push rod (13). The bottom of the base (10) is fixedly connected to the top of the base (1). When a new energy vehicle is involved in a traffic accident and falls into the water, the electric push rod (13) will push the linear moving shaft (503) to move towards the heat dissipation port (4). The linear moving shaft (503) drives the sealing blade (506) to make linear movements through the linear moving frame (505) to achieve sealing of the heat dissipation port (4) and prevent water from entering the metal cover (3) and causing a short circuit accident.

2. A novel transformer as claimed in claim 1, wherein, The blade-type heat dissipation assembly (5) includes an axial flow motor (501), which is located inside the metal cover (3) at the position corresponding to the heat dissipation port (4). A cooling fan (502) is fixedly installed on the output shaft of the axial flow motor (501). A frame (504) is fixedly installed on the outer surface of the axial flow motor (501). A linear moving frame (505) is fixedly connected to one end of the frame (504) away from the axial flow motor (501). A sealing blade (506) is provided on the side of the linear moving frame (505) corresponding to the position of the heat dissipation port (4). The sealing blade (506) is rotatably connected to the linear moving frame (505) through a blade shaft and a bearing. A temperature monitoring module is installed at the magnetic core (2). When the heat sink (111) cannot meet the heat dissipation requirements of the magnetic core (2), the axial flow motor (501) is controlled to run. The output shaft electric cooling fan (502) of the axial motor (501) rotates rapidly. Under the action of the cooling fan (502), the air around the metal cover (3) enters the interior of the metal cover (3) through the heat dissipation port (4). During the process of the air entering the interior of the metal cover (3) through the heat dissipation port (4), it will directly act on the sealing blade (506). The sealing blade (506) rotates under the drive of the air flow. The rotation of the sealing blade (506) will change the direction of the air flow, so that the air flow entering the interior of the metal cover (3) through the heat dissipation port (4) has multiple directions.

3. A novel transformer as claimed in claim 2, wherein, A regular polygonal block (6) is fixedly sleeved on the outer shaft surface of the blade shaft. A track frame (7) is sleeved around the regular polygonal block (6). The side end face of the track frame (7) is fixedly connected to the end face of the inner side of the metal cover (3).

4. A novel transformer as claimed in claim 3, wherein, The plug-in external component (8) includes a plug-in external connector (801), which is snapped onto the side end face of the metal cover (3), and a plurality of conductors are provided on the inner end face of the plug-in external connector (801).

5. A novel transformer as claimed in claim 4, wherein, The plug-in external connector (801) is provided with a sealing cover (802) on the side away from the metal cover (3) to provide waterproof sealing. A sealing gasket (803) to enhance waterproof sealing is provided between the sealing cover (802) and the plug-in external connector (801). An elbow (804) is fixedly connected to the top of the sealing cover (802). An adapter shaft (805) is fixedly connected to the other end of the elbow (804). An adapter sleeve (806) is rotatably connected to the end of the adapter shaft (805) through a bearing. The bottom of the adapter sleeve (806) is fixedly connected to the top of the plug-in external connector (801).

6. A novel transformer as claimed in claim 5, wherein, The tubular heat dissipation assembly (11) includes a heat dissipation pipe (111), which is sleeved around the magnetic core (2). The heat dissipation pipe (111) is located inside the metal cover (3). The bottom of the metal cover (3) is fitted with a suction pipe (112), which is connected to the end of the suction pipe (112) that is close to the heat dissipation pipe (111). The side of the metal cover (3) away from the suction pipe (112) is fitted with a discharge pipe (113), which is connected to the end of the discharge pipe (113) that is close to the heat dissipation pipe (111).

7. A novel transformer as claimed in claim 6, wherein, The air-driven assembly (12) includes a drive shaft (121), the outer shaft surface of which is rotatably connected to the heat sink (111) via a bearing. One end of the drive shaft (121) is fixedly connected to a flow vane (123), which is located inside the heat sink (111). The other end of the drive shaft (121) is fixedly connected to an air-driven fan (122). As the air flows through the heat dissipation pipe (111), it absorbs the hot air around the magnetic core (2) and undergoes a heat exchange reaction with it, thereby dissipating heat from the magnetic core (2). The rotating blades (123) drive the air-driven fan (122) through the rotating shaft to improve the airflow in the metal cover (3). Since the water pressure in the lower layer is greater than that in the upper layer, the water will enter the heat dissipation pipe (111) through the suction pipe (112) during the process of the new energy vehicle sinking in the water, and finally be discharged through the discharge pipe (113).

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